접합 유리용 중간막 및 접합 유리

• Main Authors: NISHINO HIROMITSU, KUMAKURA KOJI, HIROTA ETSUROU
• Format: Patent
• Language: Korean
• Published: 07.06.2018
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

접합 유리를 얻었을 때에, 접합 유리 부재와 중간막 사이에 기포가 잔존하기 어렵게 할 수 있는 접합 유리용 중간막을 제공한다. 본 발명에 따른 접합 유리용 중간막은, 열가소성 수지를 포함하고, 두께가 증가하고 있는 영역 중에, 일단부로부터 타단부에 걸쳐서 두께의 증가량이 커지는 부분을 갖거나, 두께가 증가하고 있는 영역 중에, 일단부로부터 타단부에 걸쳐서 두께의 증가량이 작아지는 부분을 갖거나, 두께 방향의 단면 형상이 쐐기 형상인 영역 중에, 일단부로부터 타단부에 걸쳐서 쐐기각이 커지는 부분을 갖거나, 또는 두께 방향의 단면 형상이 쐐기 형상인 영역 중에, 일단부로부터 타단부에 걸쳐서 쐐기각이 작아지는 부분을 갖고, 상기 두께의 증가량이 커지는 부분, 상기 두께의 증가량이 작아지는 부분, 상기 쐐기각이 커지는 부분, 또는 상기 쐐기각이 작아지는 부분의 중앙 위치에 있어서의 표면의 10점 평균 조도 Rz가 20㎛ 이상이다. There is provided an interlayer film for laminated glass with which an air bubble can be made difficult to be left behind between a lamination glass member and the interlayer film when laminated glass is obtained. The interlayer film for laminated glass according to the present invention contains a thermoplastic resin and has a portion where the amount of increase in the thickness is increased in a direction from one end to the other end in the region where the thickness is increased, has a portion where the amount of increase in the thickness is decreased in a direction from one end to the other end in the region where the thickness is increased, has a portion where the wedge angle is increased in a direction from one end to the other end in the region where the sectional shape in the thickness direction is a wedge-like shape, or has a portion where the wedge angle is decreased in a direction from one end to the other end in the region where the sectional shape in the thickness direction is a wedge-like shape, and the ten-point average roughness Rz of the surface at a center position of the portion where the amount of increase in the thickness is increased, the portion where the amount of increase in the thickness is decreased, the portion where the wedge angle is increased, or the portion where the wedge angle is decreased is 20 µm or more.